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首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >POLARIMETRIC OBSERVATIONS BY A PHASE-TILT WEATHER RADAR IN THE DFW NETWORK
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POLARIMETRIC OBSERVATIONS BY A PHASE-TILT WEATHER RADAR IN THE DFW NETWORK

机译：DFW网络中的相位倾斜天气雷达的偏振观测

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摘要

During the Spring of 2014 a Phase-Tilt Weather Radar (PTWR) developed by the University of Massachusetts was deployed within the Dallas-Fort Worth Urban Testbed operated by the CASA Engineering Research Center. During an eight-week period it observed several weather events including severe thunderstorms and stratiform rain. Observations by the phased-array radar were compared to a nearby mechanically-scanned dual-polarized radar employing a parabolic dish with the objective of assessing the relative severity of biases in polarimetric observations by the PTWR. Such biases are due to polarization-basis rotation due to scanning along a tilted axis. It is expected these would be negligible except possibly at large (> 10°) elevation angles. At lower elevation angles where near-direct comparisons were possible, differences in observations were not uniquely attributable to this souce of error.
机译：在2014年春季，由马萨诸塞州大学开发的阶段倾斜天气雷达（PTWR）部署在Casa工程研究中心运营的Dallas-Fort城市试验台上。在八周的时间内，它观察了几种天气事件，包括严重雷雨和层状雨。将分阶段阵列雷达的观测与采用抛物线的附近的机械扫描的双极化雷达进行比较，其目的是评估PTWR的极性观测中偏差的相对严重程度。这种偏置是由于沿倾斜轴扫描引起的极化基旋转。预计除外可能在大（> 10°）高度角度下可以忽略不计。在较低直接比较的较低的高度角度下，观察结果的差异并不符合这种错误的误差。

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